Power, control, and validity in research.
Parker
R M
RM
Department of Special Education, University of Texas, Austin 78712-1290.
D002648:Child; D003118:Color Perception; D003627:Data Interpretation, Statistical; D004410:Dyslexia / Q000628:therapy*; D004519:Education, Special; D005139:Eyeglasses; D006801:Humans; D008402:Mass Media; D011209:Power, Psychological; D015203:Reproducibility of Results; D012107:Research Design